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  1. Rob Barker

    No D.H.W. for Ravenheat HE120T Low Nox Combi Boiler

    Evening. A week ago my mom lost all her DHW in the house. We discovered the boiler doesn't fire up when you turn on any of the HW taps. But she still has full CH control... and no error code comes up on the display She had one plumber in who diagnosed it as a "Heating System Supply issue...